body {
  font-size: 14px;
  font-family: "微软雅黑";
}
.case-banner {
  background: url('../../img/case/1433261141.jpg') no-repeat;
  margin: 0;
  padding: 0;
  margin-top: 68px;
  font-weight: bold;
  overflow: hidden;
  background-position: center 0px;
}
.case-banner .case-banner-info {
  text-align: center;
  color: #fff;
}
.case-banner .case-banner-bg {
  visibility: hidden;
  width: 100%;
  height: auto;
  vertical-align: middle;
}
@media (max-width: 479px) {
  .case-banner {
    position: relative;
    width: 100%;
    background-size: auto 230px;
    height: 230px;
  }
  .case-banner .case-banner-info {
    margin-top: -45px;
    position: absolute;
    top: 50%;
    left: 0px;
    width: 100%;
    height: 80px;
  }
  .case-banner .case-title {
    font-size: 20px;
    line-height: 28px;
  }
  .case-banner .case-title-ch {
    position: relative;
    width: auto;
    font-size: 14px;
    padding: 1px 4px 3px 4px;
    border: 1px solid #fff;
    top: 12px;
  }
}
@media (max-width: 639px) and (min-width: 480px) {
  .case-banner {
    position: relative;
    width: 100%;
    background-size: auto 340px;
    height: 340px;
  }
  .case-banner .case-banner-info {
    height: 120px;
    margin-top: -60px;
    position: absolute;
    top: 50%;
    left: 0px;
    width: 100%;
    height: 220px;
  }
  .case-banner .case-title {
    font-size: 23px;
    line-height: 36px;
  }
  .case-banner .case-title-ch {
    position: relative;
    top: 15px;
    width: auto;
    font-size: 20px;
    padding: 2px 6px 5px 6px;
    border: 1px solid #B9B8B8;
  }
}
@media (max-width: 1023px) and (min-width: 640px) {
  .case-banner {
    position: relative;
    width: 100%;
    background-size: auto 450px;
    height: 450px;
  }
  .case-banner .case-banner-info {
    height: 160px;
    margin-top: -60px;
    position: absolute;
    top: 50%;
    left: 0px;
    width: 100%;
    height: 220px;
  }
  .case-banner .case-title {
    font-size: 33px;
    line-height: 40px;
  }
  .case-banner .case-title-ch {
    position: relative;
    top: 15px;
    width: auto;
    font-size: 24px;
    padding: 2px 10px 6px 10px;
    border: 2px solid #fff;
  }
}
@media (max-width: 1199px) and (min-width: 1024px) {
  .case-banner {
    position: relative;
    width: 100%;
    height: 300px;
    background-size: auto 300px;
  }
  .case-banner .case-banner-info {
    height: 160px;
    margin-top: -65px;
    position: absolute;
    top: 50%;
    left: 0px;
    width: 100%;
    height: 220px;
  }
  .case-banner .case-title {
    font-size: 35px;
    line-height: 38px;
  }
  .case-banner .case-title-ch {
    position: relative;
    top: 15px;
    border: 3px solid #fff;
    padding: 5px 18px 6px 18px;
    font-size: 18px;
  }
}
@media (min-width: 1200px) and (max-width: 1439px){
  .case-banner {
    position: relative;
    width: 100%;
    height: 326px;
    background-size: 100% auto;
  }
  .case-banner .case-banner-info {
    height: 160px;
    margin-top: -65px;
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
  }
  .case-banner .case-title {
    font-size: 35px;
    line-height: 38px;
  }
  .case-banner .case-title-ch {
    position: relative;
    top: 15px;
    border: 3px solid #fff;
    padding: 5px 18px 6px 18px;
    font-size: 18px;
  }
}
@media (min-width: 1440px) {
  .case-banner{
    position: relative;
    width: 100%;
    background-size: 100% auto;
    height: 382px;
    margin-top: 82px;
  }
  .case-banner .case-banner-info {
    height: 160px;
    margin-top: -80px;
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
  }
  .case-banner .case-title {
    font-size: 41px;
    line-height: 48px;
  }
  .case-banner .case-title-ch {
    position: relative;
    border: 3px solid #fff;
    padding: 5px 18px 6px 18px;
    top: 16px;
    font-size: 24px;
  }

}
.case-main {
  transition-property: all;
  -ms-transition-property: all;
  -moz-transition-property: all;
  -webkit-transition-property: all;
  -o-transition-property: all;
  padding: 0px 0px 66px 0px;
  text-align: center;
  background: #fff;
  border-bottom: 1px solid #949494;
}
.case-main .case-main-nav {
  padding: 60px 0;
}
.case-main .case-main-nav .case-child {
  display: inline-block;
  font-size: 14px;
  width: 188px;
  height: 42px;
  line-height: 42px;
  margin: 0 6px;
  border: 1px solid #B9B8B8;
  cursor: pointer;
  color: #808080;
}

.case-main .case-main-nav a {
  color: #808080;
}
.case-main .case-main-nav .case-on {
  background-color: #e60012;
  border: 2px solid #e60012;
  color: #fff;
  height: 44px;
}
.case-main .case-main-nav .case-child.case-on:first-child{
  background: #e60012;
}
.case-main .case-main-nav .case-on li {
  color: #808080;
}
.case-main .case-child-list {
  background: url(../../img/case/navPointer.png) no-repeat;
  background-position: 158px center;
  appearance: none;
  padding-left: 12px;
  text-align: left;
  position: relative;
  -webkit-touch-callout: none;
  /* iOS Safari */
  -webkit-user-select: none;
  /* Chrome/Safari/Opera */
  -khtml-user-select: none;
  /* Konqueror */
  -moz-user-select: none;
  /* Firefox */
  -ms-user-select: none;
  /* Internet Explorer/Edge */
  user-select: none;
  /* Non-prefixed version, currently
not supported by any browser */
}
.case-main .case-child-list ul {
  position: absolute;
  top: 40px;
  left: -1px;
  width: 186px;
  border: 1px solid #B9B8B8;
  border-top: none;
  display: none;
  z-index: 1;
  background: white;
}
.case-main .case-child-list li:first-child {
  border-top: 1px solid #B9B8B8;
}
.case-main .case-child-list li {
  width: 100%;
  height: 33px;
  line-height: 33px;
  padding-left: 12px;
}
.case-main .case-child-list li:hover {
  background: #EEEEEE;
}
.case-main .case-child-list li a{
  width: 100%;
  display:inline-block;
}
.case-main .case-content a {
  display: inline-block;
  float: left;
  height: auto;
  width: 20%;
}
.case-main .case-content a:hover .case-child-hide {
  display: block;
  opacity: 1;
  animation-name: imgH;
  animation-duration: 1s;
  animation-direction: alternate;
}
@keyframes imgH {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
.case-main .case-content .case-child {
  position: relative;
}
.case-main .case-content .case-child-hide {
  display: none;
  opacity: 1;
  position: absolute;
  top: 0px;
  left: 0px;
  width: 100%;
  height: 100%;
  background: #df1020;
}
.case-main .case-content .case-child-img {
  width: 100%;
  vertical-align: middle;
}
.case-main .case-content .case-child-tag {
  letter-spacing: 0.1em;
  font-weight: 100;
  font-stretch: condensed;
  padding: 6%;
  position: absolute;
  top: 0px;
  left: 0px;
  width: 88%;
  line-height:25px;
  font-size:15px;
  color: #fff;
  text-align: left;
}
.case-main .case-content .case-child-sub {
  width: 13px;
  height: 2px;
  margin: 6px 0px;
  background: #FFFFFF;
}
.case-main .case-content .case-child-content {
  position: absolute;
  top: 50%;
  left: 0px;
  width: 100%;
  height: 33px;
  margin-top: -30px;
}
.case-main .case-content .case-title {
  width: 50%;
  font-size: 16px;
  line-height: 30px;
  margin: 0 auto;
}
.case-main .case-content p {
  color: #fff;
}
.case-main .case-content .case-info {
  font-size: 12px;
  margin-top: 5px;
}
.case-main .case-content .case-child-pointer {
  position: absolute;
  bottom: 10px;
  right: 13px;
  width: 44px;
}
.case-main .case-page {
  text-align: center;
  padding: 68px 0 18px 0;
  clear: both;
}
.case-main .case-page a,
.case-main .case-page a:link,
.case-main .case-page a:visited,
.case-main .case-page span {
    height: 34px;
    line-height: 20px;
    font-size: 12px;
    display: inline-table;
    margin: 1px;
    padding: 8px 16px;
    color: #e60012;
    border: 1px solid #e60012;
}
.case-main .case-page a:hover {
  background: #E60012;
  color: white;
}
.case-main .case-page span {
  background-color: #e60012;
  color: #fff;
}
@media (min-width: 800px) and (max-width: 1100px) {
  .case-main .case-content a {
    width: 25%;
  }
}
@media (min-width: 600px) and (max-width: 799px) {
  .case-main .case-content a {
    width: 33.3%;
  }
}
@media (max-width: 599px) {
  .case-main .case-content a {
    width: 50%;
  }
}